Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.
Threads
Graduate What is the Landau pole and how does it relate to the coupling constant in QED?
- waterfall
- · Replies 3 ·
Undergrad This question may not come in the bracket of quantum mechanics but
- Aditya3003
- · Replies 5 ·
Graduate What is symmetry breaking in the Standard Model?
- friend
- · Replies 5 ·
Graduate The Double Slit Experiment: The weirdness of quantam physics
- Memyslef
- · Replies 2 ·
Graduate Does the hup essentially represent the wall or curtain of the universe?
- jadrian
- · Replies 7 ·
Graduate Is uncertainty inherent in QM?
- San K
- · Replies 13 ·
Graduate Small=high mass at quantum level, but big=high mass at classical level. Why?
- SteveinLondon
- · Replies 7 ·
Undergrad What actually happens when a photon strikes an atom?
- Decimator
- · Replies 1 ·
Graduate How do we arrive at Q = -1 from T3 and Y?
- the_pulp
- · Replies 1 ·
Graduate 1/f noise at zero frequency or dc
- iVenky
- · Replies 2 ·
Graduate Demonstration of Dirac equation covariance
- Vilnius
- · Replies 2 ·
Graduate Ampere's law with quantum mechanics
- exmarine
- · Replies 2 ·
Graduate Hong-Ou-Mandel Effect: Explaining the "-" Sign
- phonon44145
- · Replies 20 ·
Graduate Can Slater Determinant Explain the Difference Between Bosons and Fermions?
- hokhani
- · Replies 6 ·
Graduate Do the wave equations need to be modified for obstacles?
- San K
- · Replies 3 ·
Undergrad Electromagnetic and strong force
- johann1301
- · Replies 3 ·
Undergrad Exploring Energy Levels and Electron Configurations in Atomic Models
- scientifico
- · Replies 2 ·
Graduate Does the Quantum Observer Effect Imply Consciousness Influences Reality?
- Theoretically
- · Replies 2 ·
Graduate Do we really need physical/real waves to explain single particle interference?
- San K
- · Replies 10 ·
Graduate Uncertainty principle and information theory
- jadrian
- · Replies 12 ·
Graduate Is photon emission possible without electrons changing energy levels?
- Charles123
- · Replies 9 ·
Graduate Quantum Computing gate matricies
- Fixxxer125
- · Replies 2 ·
Graduate UN-entanglement? is that possible?
- 3m0k177y
- · Replies 2 ·
Graduate Dynamics in the heizenberg picture
- dudy
- · Replies 2 ·
Graduate What is the true significance of Quantum Information Theory?
- Rhydo
- · Replies 2 ·
Graduate Increase in amplitude of an electron wave
- SteveinLondon
- · Replies 5 ·
Graduate Why Isn't the Strong Nuclear Force Unified with Electroweak in GUT Models?
- tinto99
- · Replies 9 ·
Graduate Do Virtual Particles Become Real Under the Weisenberg Uncertainty Principle?
- Kyoma
- · Replies 29 ·
Graduate Quantum field theory and the renormalization group
- Naty1
- · Replies 3 ·
Graduate Thermionic emission at same temperature
- goran d
- · Replies 1 ·
Graduate Must the State |O,ready> Be Orthogonal to |O,reads up> and |O,reads down>?
- deneve
- · Replies 1 ·
Undergrad What Is the Uncertainty in the Gradient of My Linear Graph?
- quietrain
- · Replies 10 ·
Graduate Hydrogwn atom electron probability
- jd12345
- · Replies 2 ·
Graduate My bra-ket calcs seem to be going wrong - help
- andrewkirk
- · Replies 3 ·
Graduate Can Someone Please Explain Hermitian Conjugates To Me?
- Bowenwww
- · Replies 9 ·
Graduate Unraveling the Mystery of Quantum Eraser - Help Needed!
- palleon
- · Replies 1 ·
Graduate What are the energy states of a hydrogen atom in a B field?
- jhendren
- · Replies 1 ·
Undergrad What are the differences between the two graphs of electron probability density?
- jd12345
- · Replies 1 ·
Graduate Exchange splitting of energy levels of a system?
- genericusrnme
- · Replies 1 ·
Graduate Where is the arrow of time if every decision is essentially instant?
- Ryan_M
- · Replies 2 ·
Graduate Deriving Stationary State Wave Functions for a Free Particle on a Ring
- MichalXC
- · Replies 25 ·
Graduate QFT as pilot-wave theory of particle creation and destruction
- the_pulp
- · Replies 10 ·
Graduate Questions about the delayed choice quantum erasure experiment
- Xilor
- · Replies 5 ·
Graduate Nonlocality and Compactified Dimensions
- waterfall
- · Replies 1 ·
Graduate Ok, suppose Macro-entanglement is possible
- 3m0k177y
- · Replies 14 ·
Graduate The Mystery of Quantum Entanglement: Feynman's View on the Double Slit Pattern
- San K
- · Replies 6 ·
Graduate On Thought Experiments: Question
- Alcubierre
- · Replies 1 ·
Graduate Can Time Crystals Redefine Our Understanding of Time and Space?
- blackraven
- · Replies 1 ·
Graduate Understanding spin, spinors, and rotations
- VantagePoint72
- · Replies 7 ·
Graduate Spherical harmonics and wavefunctions
- Chemist20
- · Replies 6 ·
Graduate Zeeman effect - spin orbit coupling
- Chemist20
- · Replies 4 ·
Graduate Quantum mechanics without wavefunctions
- cgk
- · Replies 13 ·
Graduate Ref for single electron double slit experiments
- marsdk
- · Replies 3 ·
Graduate How does Perturbation theory account for interactions in QED?
- rodsika
- · Replies 8 ·
Graduate Wave function collapse with Young's double slits.
- inquiring
- · Replies 2 ·
Graduate Degenerate Perturbation Theory
- Niles
- · Replies 4 ·
Undergrad What Are the Force Carriers in the Four Fundamental Forces of Physics?
- beatlemaniacj
- · Replies 2 ·
Undergrad Energy of light ( wave or particle)
- jd12345
- · Replies 5 ·
Undergrad Tried finding out what this symbol means, but to no avail did not find it. Help
- Jin 06
- · Replies 5 ·
Graduate Derivative of an operator valued function
- giova7_89
- · Replies 15 ·
Graduate Wave function is always in abstract space?
- waterfall
- · Replies 24 ·
Graduate Schrodinger Equation and wavefunctions
- Chemist20
- · Replies 1 ·
Undergrad Energy levels hydrogenic atoms
- Chemist20
- · Replies 6 ·
Undergrad Radial distribution function, concept.
- Chemist20
- · Replies 4 ·
Graduate Understanding QFT vs QM: A Beginner's Guide to the Differences and Similarities
- waterfall
- · Replies 67 ·
Graduate What is the difference between interaction and measurement?
- Xilor
- · Replies 17 ·
Graduate Two Groups of Entangled Photons
- StevieTNZ
- · Replies 11 ·
Graduate Can photon-photon interactions alone produce black body radiation?
- Rap
- · Replies 12 ·
Graduate Quantum superposition and Vector Space
- spaghetti3451
- · Replies 3 ·
Graduate Lagrangian vs Hamiltonian in QFT vs QM
- waterfall
- · Replies 13 ·
Undergrad Dose E=hn means quantization of energy?
- athrun200
- · Replies 5 ·
Graduate Charge Conjugation and Internal Symmetry Representations
- erccarls
- · Replies 1 ·
Graduate U(1), SU(2), SU(3) are symmetry of what?
- friend
- · Replies 5 ·
Graduate Can better sensors extract more info from old lens w/o limits?
- nugat
- · Replies 1 ·
Graduate Any useful applications at all?
- Agerhell
- · Replies 1 ·
Graduate What were the first applications of quantum mechanics to technology?
- mjpam
- · Replies 5 ·
Graduate I can't figure out if these are matrices or numbers
- Matterwave
- · Replies 3 ·
Undergrad Do Slater's Rules and Hund's Rule Contradict Each Other?
- Paperfish
- · Replies 1 ·
Graduate Evidence that electron is a point particle?
- jewbinson
- · Replies 4 ·
Graduate A question in QFT book of Peskin&Schoeder?
- ndung200790
- · Replies 7 ·
Graduate What is the direction of angular momentum vector of a photon?
- jartsa
- · Replies 5 ·
Graduate Can Quantum Probability Fields Mimic Wormhole Effects in Particle Transfer?
- questionpost
- · Replies 2 ·
Graduate Understanding Quantum Spin: A Layman's Guide to Particle Spin of 1/2
- Feeble Wonk
- · Replies 3 ·
Graduate Radial wave function in H atom
- facenian
- · Replies 8 ·
Graduate Can a photon have energy of spin?
- James_Harford
- · Replies 4 ·
Undergrad Electromagnetic radiations in bohr model
- jd12345
- · Replies 13 ·
Graduate Quantum Harmonic Oscillator Question
- achilleasatha
- · Replies 6 ·
Graduate Quantum Field as Physical Entity?
- waterfall
- · Replies 30 ·
Graduate Orchestration of Quantum Entanglement
- tim1608
- · Replies 6 ·
Graduate Magnitude of the scattering ampliudes in QFT
- DrFaustus
- · Replies 20 ·
Graduate The dipole interaction and fermions
- Niles
- · Replies 14 ·
Graduate Is space quantized or is it seamless and smooth?
- jsirak2
- · Replies 7 ·
Graduate What is the physical meaning of the double rotation symmetry of spin-1/2 states?
- dudy
- · Replies 6 ·
Graduate Do photons gain mass in the presense of a black hole?
- kjamha
- · Replies 4 ·
Graduate A question regarding finite potential wells
- dogmatic
- · Replies 2 ·
Graduate How photon entanglement works?
- Natko
- · Replies 3 ·
Graduate Is there lighter particle than photon?
- intobrain
- · Replies 2 ·
Graduate /The probability density does not goto zero at the nodes if
- dpa
- · Replies 1 ·
Graduate Question on the nature of spacetime
- Irish Dave
- · Replies 2 ·
Graduate Do gamma and X-ray wavelength photons also exist as collapse able wave fx's?
- xander77
- · Replies 3 ·